Happy Pi Day! Mar 14, 2018

Happy Pi Day!

To celebrate Pi Day this March 14 (or 3/14 or 3.14), we visit the balmy waters of Little Bahama Bank, Bahamas. Two Atlantic spotted dolphins were photographed here blowing a bubble ring, also known as a toroidal ring. And if they were to calculate the circumference of their bubble ring, they’d need to use our favorite irrational number, π.

© Hiroya Minakuchi/Minden Pictures

palette

Today in History

Mar 14, 2019Rocky mountain pi
Mar 14, 2020A circular celebration
Mar 14, 2021Perfect timing
Mar 14, 2022Pi Day
Mar 14, 2023Pi Day
Mar 14, 2024Happy Pi Day!
Mar 14, 2025Celebrating Pi Day

More Desktop Wallpapers:

Jul 26, 2019The party’s just starting
May 20, 2021Happy Bee Day to you
Aug 25, 2019A desert arts pop-up, just popped up
Feb 29, 2020It s leap day!
Jul 31, 2022Noctilucent clouds
Apr 2, 2020Pascua Florida Day
Jul 8, 2024National Blueberry Day
Sep 2, 2019Detroit Industry Murals by Diego Rivera
Jan 14, 2020Going head-to-head with winter
Dec 22, 2018Night of the ‘Cold Moon’
Jul 29, 2024International Tiger Day
Oct 11, 2025World Migratory Bird Day
Oct 17, 2025Rock River Falls, Upper Peninsula, Michigan
Feb 18, 2018Great horned owl near Lake Tohopekaliga, Florida
Nov 23, 20191, 1, 2, 3: It s Fibonacci Day!
Dec 3, 2020A Carpathian Christmas celebration
Aug 2, 2023Capitol Reef National Park, Utah
Nov 18, 2018An inland ocean
Mar 18, 2021A sizzling summit hides in the clouds
Nov 19, 2024Tasmans Arch, Tasmania, Australia
Apr 5, 2019A day of death and rebirth
Sep 28, 2025The town of Pienza in Tuscany, Italy
May 15, 2024The Blue City of Jodhpur, Rajasthan, India
Apr 12, 2018Sydney Harbour Bridge in Sydney, Australia
Oct 10, 2023Mount Sopris, Colorado
Oct 14, 2023Ring of fire solar eclipse
May 22, 2024International Day for Biological Diversity
May 9, 2023A castle fit for a count
Dec 24, 2021Smoking nights in Austria
Feb 5, 2018Iceberg off the coast of Antarctica